What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

What can go up a chimney down, but can’t go down a chimney up?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?